10,000individuals
Hacking/IT IncidentArchived
The Signal Directory
Health Data Breach Tracker
Search every US health data breach of 500 or more people reported to HHS OCR since 2009. Filter by entity, type and date. Built from the OCR public breach portal.
Breaches listed
8,066
2009 to 2026
Individuals affected
1,106,146,271
sum of reported counts
Under investigation
open OCR cases
Top breach types
- 4,864
- 1,694
- 1,003
- 216
Monthly roundups
8,066 breaches
109,210individuals
Hacking/IT IncidentArchived
1,085individuals
Unauthorized Access/DisclosureArchived
5,000individuals
Hacking/IT IncidentArchived
5,000individuals
Hacking/IT IncidentArchived
5,000individuals
Hacking/IT IncidentArchived
37,750individuals
Hacking/IT IncidentArchived
690individuals
Unauthorized Access/DisclosureArchived
3,679individuals
Hacking/IT IncidentArchived
2,656individuals
Hacking/IT IncidentArchived
12,317individuals
Hacking/IT IncidentArchived
9,372individuals
Unauthorized Access/DisclosureArchived
5,973individuals
Hacking/IT IncidentArchived
181,764individuals
Hacking/IT IncidentArchived
2,501individuals
Hacking/IT IncidentArchived
33,839individuals
Hacking/IT IncidentArchived
1,105individuals
Unauthorized Access/DisclosureArchived
61,327individuals
Hacking/IT IncidentArchived
489,830individuals
Hacking/IT IncidentArchived
1,048individuals
Hacking/IT IncidentArchived
9,412individuals
Hacking/IT IncidentArchived
1,415individuals
Hacking/IT IncidentArchived
17,191individuals
Hacking/IT IncidentArchived
168,215individuals
Hacking/IT IncidentArchived
2,721individuals
Improper DisposalArchived
UT · Jun 6, 2023
Utah Medicaid, Division of Integrated Healthcare: Utah Department of Health and Human Services
Health Plan
5,833individuals
Unauthorized Access/DisclosureArchived
2,470,000individuals
Hacking/IT IncidentArchived
501individuals
Hacking/IT IncidentArchived
15,545individuals
Hacking/IT IncidentArchived
10,059individuals
Hacking/IT IncidentArchived
12,405individuals
Hacking/IT IncidentArchived
31,248individuals
Hacking/IT IncidentArchived
23,557individuals
Hacking/IT IncidentArchived
20,865individuals
Hacking/IT IncidentArchived
MS · Jun 2, 2023
Mississippi Children’s Home Society, CARES Center, Inc., Mississippi Children’s Home Services, Inc., d.b.a. Canopy Children’s Solutions
Healthcare Provider
19,791individuals
Hacking/IT IncidentArchived
1,802individuals
Unauthorized Access/DisclosureArchived
124,862individuals
Hacking/IT IncidentArchived
684individuals
Hacking/IT IncidentArchived
91,851individuals
Hacking/IT IncidentArchived
33,000individuals
Hacking/IT IncidentArchived
7,000individuals
Unauthorized Access/DisclosureArchived
24,382individuals
Hacking/IT IncidentArchived
3,763individuals
Hacking/IT IncidentArchived
233,834individuals
Hacking/IT IncidentArchived
1,191individuals
Hacking/IT IncidentArchived
524individuals
Hacking/IT IncidentArchived
507individuals
Hacking/IT IncidentArchived
1,389individuals
Hacking/IT IncidentArchived
796individuals
Hacking/IT IncidentArchived
1,518individuals
Hacking/IT IncidentArchived
916individuals
Hacking/IT IncidentArchived
4,456individuals
Hacking/IT IncidentArchived
1,147individuals
Hacking/IT IncidentArchived
983individuals
Hacking/IT IncidentArchived
803individuals
Hacking/IT IncidentArchived
1,097individuals
Hacking/IT IncidentArchived
537individuals
Hacking/IT IncidentArchived
8,432individuals
Hacking/IT IncidentArchived
833individuals
Unauthorized Access/DisclosureArchived
1,784individuals
Hacking/IT IncidentArchived
About this data
By Dr. Dereck Mush, MD, MBA, Editor In Chief
It currently holds 8,066 breaches, with submission dates from October 21, 2009 to October 9, 2026, and it refreshes every week from OCR's public breach portal.
We built it for the people who have to act on this data: health system CISOs and security teams benchmarking their own risk, compliance and privacy leads tracking how breaches are reported, and investors doing diligence on healthcare companies and their vendors.
Here's how to read it. Each row is a single report filed with OCR. It shows the covered entity, its state and entity type, the number of individuals affected, the breach type (for example hacking or IT incident, or unauthorized access), where the information was held, and the date it was submitted. Use the filters to narrow by submission date, entity type or breach type, and open any row for its detail page. The monthly roundups group new reports by submission month, so you can see what changed recently without scrolling the full list.
- Source. Every record comes from the HHS OCR breach portal, which lists breaches of unsecured protected health information affecting 500 or more individuals. We show the data as OCR reports it and don't add or change the reported facts. Any editorial note we add is labeled as ours.
- Under investigation vs archive. OCR keeps two lists. "Under investigation" lists HIPAA breaches reported within the last 24 months that are currently under investigation by the Office for Civil Rights. "Archive" holds resolved HIPAA breach reports and/or reports older than 24 months. A breach can move from one list to the other between weekly refreshes.
- Individuals affected. These are the counts reported to OCR. Entities can revise them, and the same person can appear in more than one breach, especially when a single vendor incident is reported separately by several covered entities. Adding the counts together will overstate the number of unique people affected.
- No implication of wrongdoing. A listing means a breach was reported to OCR. It doesn't mean the entity broke the law or was at fault beyond what OCR itself has published. Check OCR's own records for any finding, resolution or penalty.
- Updates. The tracker refreshes weekly. If you spot something that doesn't match OCR's portal, tell us and we'll check it against the source.
Source: HHS Office for Civil Rights Breach Portal. Latest submission in the data: Oct 9, 2026. Refreshed weekly from the portal.